bdsmlr https://bdsmlr.com (bdsm, anal, misogyny, raceplay, etc.) Tumblr replacement. Images and gifs of porn with a focus on BDSM.
Extreme Board http://extreme-board.com (scat, bdsm, rape, etc.) Bulletin board with several sections including: Forced Sex, BDSM (featuring a Humiliation of Women sub-board!), and Scat. Lots of other sub-boards including pissing, pregnant and non-hardcore fetishes like teens. (Free) Membership required. Lots of great clips and full length videos, as well as some images.
Rule 34 https://rule34.xxx (hentai images) Find hentai pictures from a brilliant searchable database categorized by kink, artist, orientation, position and other picture elements. Sample tags you can use to search: crying, rape, scat, anal, feet, blonde, freckles, fellatio, bottomless, etc. Or use negated tags to avoid kinks you don't like. Similar to danbooru.
Alfie https://buttsmithy.com (adult comic) Buttsmithy is the home of Alfie, the Internet's best adult webcomic. Halfling sexpot goes on a journey.
I Roved Out in Search of Truth and Love https://irovedout.com (adult comic) The second best adult webcomic. Extreme nymphomaniac elf goes on a journey.
Reddit https://www.reddit.com (everything) Social content aggregator with massive set of adult communities. Favorites are r/analonly, r/freeuse, r/girlspooping, and r/SpreadEm.
Discord Discord chats often post good porn. For example, Rule34 or Sabu's Sex Arcade fanclub
Jinjin's HP http://www86.sakura.ne.jp/~jinjin Lots of great pics of schoolgirls getting each of their holes filled. A section of dickgirls, if you like that stuff. Still updated as of January 2021. (some censorship)
Studio TB: Tabe Koji Home Page http://www.vinet.or.jp/~wrx-ra/ Beautiful art from a guy who must have went to the same art school as the artist at "Yuhki+Free". Luckily, Tabe Koji's pictures are a lot less scary. (Vaginal censorship)
Gelbooru http://gelbooru.com (hentai images) Like Rule 34, but without scat.
XNXX http://www.xnxx.com The ancient TGP-turned-streaming site with a focus on categories and videos. Misleading links are minimal and obvious.
Bing http://www.bing.com By crawling and archiving pics and videos and letting you view them without going to the site, Bing quietly became the best porn site on the web. Search is greatly enhanced with suggested terms and categories with a Google-like accuracy. For example, searching for pics of "redhead anal" will give suggestions for "Redhead Milf Anal" and "Ginger Anal".
You probably already know about pornhub, xhamster and the rest.
Literotica.com http://www.literotica.com The best erotica site on the Internet. Some scat is located in the Fetish directory. I recommend "Cat Tail" (Anal) and "Vanessa" (Mind Control).
The Erotic Mind-Control Story Archive https://mcstories.com Well-organized stories about mind control across many fetishes (including scat) and sexual orientation.
Wattpad https://www.wattpad.com Home to mostly teenage-written drivel but also some of the most hardcore misogynistic slavery erotica I've ever read. The "End of Women" series by MRControl is good and there was a set of novels by coffinnail97 that were utter perfection until they were all removed.
BDSM Library http://www.bdsmlibrary.com A large, well-organized collection of stories, with a general focus on BDSM. This site has less stories than ASSTR, but the search engine is nice. You can search through the stories by specifing or rejecting fetishes, the level of consent, the sex of the dom(s) and/or sub(s), etc. Yes, there are scat stories too. Sadly not updated since 2017.
JeffersonJames.com http://www.jeffersonjames.com Great rape stories. Probably the Internet's best rape erotica writer. Books for sale.
Arthur Saxon's Stories http://www.asstr.org/~Arthur_Saxon Mostly panty pooping stories by a man I might call the best scat erotica writer on the net. Updated regularly since 1999. ASSTR is dead, but I hope he will move to another host.
The Lair of the Purple Herald https://storiesonline.net/a/Purple_Herald
Stories by different fictional authors, most of them centered
around a lust deity that grants the narrators special powers. The
Purple Herald does a great job of making each author have a unique
sound and personality. The stories by Lucas are incredibly
delicious.
Mecca's All-Time Favorite Stories
A Dark Place by Jefferson James (rape)
Guest of the Inquisitor by Jefferson James (rape)
Ass Banjo by Roy_Eldorado (anal)
Cat Tail by Albatross (anal)
Enslaved Landlady by Blake Garfield (scat, bdsm, torture, humiliation)
Everything's Okay by Limerick (mind control)
Fight Club: I am Jack's Blue Balls by Marquis de Porn (sadomasochism)
Latina Heat by Will Wanton (scat)
The Rape Run by Olga Anastasia (rape, slavery, snuff, torture, mind control)
Quark Decay by Arthur Saxon (scat)
Raping Amy by Wiley06 (rape)
Vanessa by rlfj (slavery, rape, torture, brainwashing)
The Toilet http://www.toiletstool.com/toilet Forum about our daily activities. Posts must not be too sexual. Still going daily since 1996!
4chan http://www.4chan.org/ Porn, humor, hentai, recipes and more.
Links last checked 2021.
Dead: https://www.gurochan.cx/